CVE-2024-12084

Publication date 9 January 2025

Last updated 23 January 2025

Ubuntu priority

High

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

A heap-based buffer overflow flaw was found in the rsync daemon. This issue is due to improper handling of attacker-controlled checksum lengths (s2length) in the code. When MAX_DIGEST_LEN exceeds the fixed SUM_LENGTH (16 bytes), an attacker can write out of bounds in the sum2 buffer.

Read the notes from the security team

Why is this CVE high priority?

Possible remote code execution or denial of service

Learn more about Ubuntu priority

Status

Package Ubuntu Release Status
rsync 24.10 oracular
Vulnerable
24.04 LTS noble
Fixed 3.2.7-1ubuntu1.1
22.04 LTS jammy
Fixed 3.2.7-0ubuntu0.22.04.3
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected

Notes

alexmurray

affects rsync since 3.2.7 as was introduced in upstream commit ae16850dc58e884eb9f5cb7f772342b2db28f471

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
rsync

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H